Fix lint issues and bump Go to 1.26.1

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.25']
+        go-version: ['1.26']
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
@@ -43,7 +43,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6
         with:
-          go-version: '1.25'
+          go-version: '1.26'
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9

extract/extract.go

@@ -3,6 +3,7 @@ package extract
 import (
 	"os"
 	"regexp"
+	"slices"
 	"strings"
 	"unicode/utf8"
 
@@ -142,13 +143,13 @@ func FilterIgnoreBlocks(text string) string {
 		b.WriteString(text[:startIdx])
 
 		rest := text[startIdx+len(startMarker):]
-		endIdx := strings.Index(rest, endMarker)
-		if endIdx == -1 {
+		_, after, found := strings.Cut(rest, endMarker)
+		if !found {
 			// Unclosed block: discard the rest.
 			break
 		}
 
-		text = rest[endIdx+len(endMarker):]
+		text = after
 	}
 
 	return b.String()
@@ -172,18 +173,18 @@ func ExtractFromFile(path string) (core.ReuseInfo, error) {
 	return info, nil
 }
 
+const binaryCheckLimit = 8192
+
 // isBinary returns true if data looks like a binary file. It checks for null
 // bytes and invalid UTF-8 in the first 8KB.
 func isBinary(data []byte) bool {
 	check := data
-	if len(check) > 8192 {
-		check = check[:8192]
+	if len(check) > binaryCheckLimit {
+		check = check[:binaryCheckLimit]
 	}
 
-	for _, b := range check {
-		if b == 0 {
-			return true
-		}
+	if slices.Contains(check, 0) {
+		return true
 	}
 
 	return !utf8.Valid(check)

go.mod

@@ -1,5 +1,5 @@
 module github.com/git-pkgs/reuse
 
-go 1.25.6
+go 1.26.1
 
 require github.com/BurntSushi/toml v1.6.0